DEFINITY ECS Release 8.2 Maintenance for R8.2csi
555-233-119 Issue 1
April 2000
Maintenance Objects
3-1107TIE-TRK (Tie Trunk)
3
Figure 3-44. Tie Trunk Interactions
The number of tests to be implemented for Tie Trunk maintenance depends upon
the TIE-TRK circuit packs involved. The test are as follows:
1. NPE Crosstalk Test—Verifies the switch connection operation of the c ircuit
pack. It verifies that the trunk c ircuitry talks only on the selected time sl ot
on the TDM Bus and that it never crosses over to time slots rese rved for
other connections.
2. Loop Around and Conferenc e Circuit Test—Verifies the transmission
operation of the circuit p ack. It verifies that signals are transmitted to and
from each port (Loop Around within the port), and it tests the c onference
capabilities of all p orts.
This test may fail due to noise induced by adjacent elec tric power lines.
Customers having this proble m should resolve it with their local po wer
company. To temporarily alleviate the alarm caused b y the failure of this
test, the test may be disabled from trunk administration test field.
3. Several seizure tests, including the following:
— Tie Trunk Seizure Test verifies the seizure capabilities of the circuit
pack. For the TN2140B circuit pac k, this test activates the M lead
and checks for a resp onse from the distant end within 10 second s.
This test ABORTS on trunk ports administered as access
endpoints.
TIE
TRUNK
PORT
PBX
TIE
TRUNK
PBX
TIE TRUNK
PORT
CIRCUIT
PACK
CIRCUIT
PACK